• Corpus ID: 235694589

Micromotion minimisation by synchronous detection of parametrically excited motion

  title={Micromotion minimisation by synchronous detection of parametrically excited motion},
  author={D. P. Nadlinger and P. Drmota and Daniel Main and B. C. Nichol and Gabriel Araneda and R Srinivas and L J Stephenson and Christopher J. Ballance and David M. Lucas},
Precise control of charged particles in radio-frequency (Paul) traps requires minimising excess micromotion induced by stray electric fields. We present a method to detect and compensate such fields through amplitude modulation of the radio-frequency trapping field. Modulation at frequencies close to the motional modes of the trapped particle excites coherent motion whose amplitude linearly depends on the stray field. In trapped-ion experiments, this motion can be detected by recording the… 
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